3. A flat steel bar 150 mm wide by 50 mm thick has axial loads applied at points A, B, C and D as shown in Figure Q3. Determine the axial stress in the bar in section BC, the displacement and normal strain of point D relative to point B. Given that E= 200 GPa. 500 KN OA 1000mm ← 1200mm ВО 450 kN Figure Q3 800mm CO DO 200 KN 250 KN [Ans: GBC = 6.7 MPa (T); BD = -6.7×10² mm; £AD=-1×10°7mm/mm]
3. A flat steel bar 150 mm wide by 50 mm thick has axial loads applied at points A, B, C and D as shown in Figure Q3. Determine the axial stress in the bar in section BC, the displacement and normal strain of point D relative to point B. Given that E= 200 GPa. 500 KN OA 1000mm ← 1200mm ВО 450 kN Figure Q3 800mm CO DO 200 KN 250 KN [Ans: GBC = 6.7 MPa (T); BD = -6.7×10² mm; £AD=-1×10°7mm/mm]
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![3. A flat steel bar 150 mm wide by 50 mm thick has axial loads applied at points A, B, C
and D as shown in Figure Q3. Determine the axial stress in the bar in section BC, the
displacement and normal strain of point D relative to point B. Given that E = 200 GPa.
500 KN
OA
1000mm
1200mm -800mm
BO>>
450 kN
Figure Q3
CO DO
250 KN
[Ans: GBC = 6.7 MPa (T); ỔBD=-6.7×10² mm; £BD=-1×10-7mm/mm]
200 KN](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46c24774-57a4-4166-8833-08e19e4dcaa4%2F5c5f66da-9826-4f10-a903-e8a163988c1b%2F8pz2sbs_processed.png&w=3840&q=75)
Transcribed Image Text:3. A flat steel bar 150 mm wide by 50 mm thick has axial loads applied at points A, B, C
and D as shown in Figure Q3. Determine the axial stress in the bar in section BC, the
displacement and normal strain of point D relative to point B. Given that E = 200 GPa.
500 KN
OA
1000mm
1200mm -800mm
BO>>
450 kN
Figure Q3
CO DO
250 KN
[Ans: GBC = 6.7 MPa (T); ỔBD=-6.7×10² mm; £BD=-1×10-7mm/mm]
200 KN
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